摘要
测得翡翠饰品Ａ，Ｂ货的平均折射率分别为１．６５５，１．６５５．平均密度分别为３．３１０ｇ／ｃｍ３，３．２５８ｇ／ｃｍ３．Ｘ光衍射分析Ｂ货的玉料有硬玉玉料和钠铬辉石玉料２种．红外光谱、喇曼光谱分析Ａ、Ｂ货，均出现典型的硬玉谱线．Ｂ货的红外光谱和喇曼光谱均出现碳氢基团的谱线．电子探针分析Ｂ货含大量的碳元素．Ａ。
The jadeitic jewelry in the world market is divided into four grade: A,B,B+C, and C. For A and B grade jadeite, it is determined that their average infractive index is respectively 1 655, 1 655 and that their average specific gravity 3 310, 3 258 g/cm 3 X ray diffraction showed jadeitic material and ureyitic material can be the two kinds of jade material of B grade jadeite. The typical spectrum of jadeite appeared in the infrade spectra and Raman spectra of both A and B grade jadeite, while B grade jadeite displayed the spectrum of C H group in the two kinds of spectra. The results of electron probe test revealed much carbon in B grade jadeite and the scanning electron microscope gave significantly different graphs of A B and C grade jadeite. With information revealing the difference between A and B grade jadeite, non damaged identification of all kinds of jadeite can be conducted.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
1996年第5期127-130,共4页
Acta Scientiarum Naturalium Universitatis Sunyatseni
关键词
翡翠
散射谱
扫描电镜
宝石级
钠铝硅酸盐矿物
A jadeite, B jadeite, infrade spectra, raman spectra, scanning electron microscope
